How to generate fancy callgraphs from oprofile

Make sure you have the same path to the binaries you want to profile on your target device as your workstation.

On your profiling target as root:

export KREXP=dpkg -L kernel-debug | grep "vmlinux-2.6"
opcontrol --init
opcontrol --vmlinux=$KREXP
opcontrol --separate=kernel
opcontrol --status
opcontrol -c=8

start your application

as root again:

opcontrol --stop;  opcontrol --reset; opcontrol --start; sleep 5; opcontrol --stop

commence activity you want to profile - i.e. scroll around wildly, play a video, etc

on your workstation/host environment:

rm -rf /var/lib/oprofile && scp -r root@192.168.2.15:/var/lib/oprofile /var/lib/
this should give you some log info:
opreport -l -r

to finally generate the fancy svg:

opreport -c /path/to/binary_to_profile > /tmp/opreport.txt
oprofile-callgraph-to-svg -e 1 -n 1 /tmp/opreport.txt

your result should look like this